Files
yoga/tests/YGBaselineFuncTest.cpp
Lukas Woehrl c169a98be6 Baseline support
Summary:
Added baseline support (see #132)

You have the ability for a custom baseline function (```float(*YGBaselineFunc)(YGNodeRef node);```) to return whatever baseline you want.
Closes https://github.com/facebook/yoga/pull/317

Reviewed By: splhack

Differential Revision: D4385061

Pulled By: emilsjolander

fbshipit-source-id: cb8a59a09237c840fa3e21753ab68239997dab0c
2017-01-06 06:54:41 -08:00

64 lines
2.4 KiB
C++

/**
* Copyright (c) 2014-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#include <gtest/gtest.h>
#include <yoga/Yoga.h>
static float _baseline(YGNodeRef node, const float width, const float height) {
float *baseline = (float *) YGNodeGetContext(node);
return *baseline;
}
TEST(YogaTest, align_baseline_customer_func) {
const YGNodeRef root = YGNodeNew();
YGNodeStyleSetFlexDirection(root, YGFlexDirectionRow);
YGNodeStyleSetAlignItems(root, YGAlignBaseline);
YGNodeStyleSetWidth(root, 100);
YGNodeStyleSetHeight(root, 100);
const YGNodeRef root_child0 = YGNodeNew();
YGNodeStyleSetWidth(root_child0, 50);
YGNodeStyleSetHeight(root_child0, 50);
YGNodeInsertChild(root, root_child0, 0);
const YGNodeRef root_child1 = YGNodeNew();
YGNodeStyleSetWidth(root_child1, 50);
YGNodeStyleSetHeight(root_child1, 20);
YGNodeInsertChild(root, root_child1, 1);
float baselineValue = 10;
const YGNodeRef root_child1_child0 = YGNodeNew();
YGNodeSetContext(root_child1_child0, &baselineValue);
YGNodeStyleSetWidth(root_child1_child0, 50);
YGNodeSetBaselineFunc(root_child1_child0, _baseline);
YGNodeStyleSetHeight(root_child1_child0, 20);
YGNodeInsertChild(root_child1, root_child1_child0, 0);
YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
ASSERT_FLOAT_EQ(0, YGNodeLayoutGetLeft(root));
ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root));
ASSERT_FLOAT_EQ(100, YGNodeLayoutGetWidth(root));
ASSERT_FLOAT_EQ(100, YGNodeLayoutGetHeight(root));
ASSERT_FLOAT_EQ(0, YGNodeLayoutGetLeft(root_child0));
ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root_child0));
ASSERT_FLOAT_EQ(50, YGNodeLayoutGetWidth(root_child0));
ASSERT_FLOAT_EQ(50, YGNodeLayoutGetHeight(root_child0));
ASSERT_FLOAT_EQ(50, YGNodeLayoutGetLeft(root_child1));
ASSERT_FLOAT_EQ(40, YGNodeLayoutGetTop(root_child1));
ASSERT_FLOAT_EQ(50, YGNodeLayoutGetWidth(root_child1));
ASSERT_FLOAT_EQ(20, YGNodeLayoutGetHeight(root_child1));
ASSERT_FLOAT_EQ(0, YGNodeLayoutGetLeft(root_child1_child0));
ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root_child1_child0));
ASSERT_FLOAT_EQ(50, YGNodeLayoutGetWidth(root_child1_child0));
ASSERT_FLOAT_EQ(20, YGNodeLayoutGetHeight(root_child1_child0));
}